50000 COUNTS DUAL DISPLAY DIGITAL MULTIMETER
50000 COUNTS DUAL DISPLAY DIGITAL MULTIMETER
The GDM-8246 bench-top DMM is equipped with a rich set of features. It offers a 50,000 counts meter
with a large dual display 7 segment LED. The display is capable of showing two electrical characteristics
at once: ACV plus frequency or dBm, DCV plus dBm or ACV ripple. The GDM-8246 carries an extensive
list of measurement items - DC Voltage/Current, AC Voltage/Current with true RMS, Resistance,
Capacitance, Frequency, Continuity (with beeper), Diode Test, and dBm. Additional measurement
functions, such as Max/Min hold, Relative value, and Compare ease setup and diagnosis burdens. The
GDM-8246 supports remote control and data-logging using standard IEEE488.2 protocol or proprietary
Windows based software via an RS-232C or optional GPIB interface.
GDM-8245 (50000 Counts)
GDM-8246 (50000 Counts)
* 50000 Counts Display
* Multi-Function ACV, DCV, ACA, DCA, R, C,
Hz, Continuity Beeper, Diode Test, Max/Min,
REL, Auto Hold, dBm
* Compare Function
* Dual Display Indicate ACV and Hz, DCV(ACV)
and dBm
* DCV and ACV Ripple
* Manual or Auto Ranging
* 0.02% DCV Accuracy
* ACV Measuring Frequency Up to 100kHz
* 20A Current Range With High Energy Fuse
Protection
* Auto-Recall the Settings Upon Power ON
* AC True RMS or AC + DC True RMS
* RS-232C Interface
* Option : GPIB Interface
SPECIFICATIONS
SPECIFICATIONS
DC VOLTAGE
Range
Accuracy
Input Impedance
DC VOLTAGE
Range
Accuracy
Input Impedance
500mV, 5V, 50V, 500V, 1000V 5 ranges
(0.02% rdg + 4 digits)
10M
AC VOLTAGE TRUE RMS
Range
500mV, 5V, 50V, 500V, 1000V 5 ranges
Accuracy
500mV ~ 1000V 5 ranges :
20Hz ~ 50Hz : (1% rdg + 10 digits)
50Hz ~ 2kHz : (0.3% rdg + 30 digits)
2kHz ~ 10kHz : (0.4% rdg + 50 digits)
500mV ~ 500V 4 ranges :
10kHz ~ 20kHz : (0.5% rdg + 50 digits)
500mV ~ 50V 3 ranges :
20kHz ~ 50kHz : (2% rdg + 20 digits)
50kHz ~ 100kHz : (5% rdg + 50 digits)
Input Impedance
10M
DC CURRENT
Range
500 A, 5mA, 50mA, 500mA, 2A, 20A 6 ranges
Accuracy
500 A~500mA 4ranges: (0.05% rdg+3 digits);2A~20A 2ranges: (0.2% rdg+5digits)
FEATURES
* 50000 Counts Display
* Multi-Function ACV, DCV, ACA, DCA, R, C,
Hz, Continuity Beeper, Diode Test, Max/Min,
REL, Hold, dBm
* Dual Display Indicate ACV and Hz, DCV(ACV)
and dBm
* Manual or Auto Ranging
* 0.03% DCV Accuracy
* ACV Measuring Frequency Up to 50kHz
* AC True RMS or AC + DC True RMS
AC CURRENT TRUE RMS
Range
500 A, 5mA, 50mA, 500mA, 2A, 20A 6 ranges
500 A ~ 20A 6 ranges
Accuracy
20Hz ~ 45Hz : (1% rdg + 15 digits) ; 45Hz ~ 2kHz : (0.5%rdg + 15 digits)
500 A ~ 500mA 4 ranges
2kHz ~ 10kHz : (1% rdg + 15 digits) ; 10kHz ~ 20kHz : (2%1% rdg + 15 digits)
500mV, 5V, 50V, 500V, 1000V 5 ranges
(0.03% rdg + 4 digits)
10M
AC VOLTAGE TRUE RMS (AC OR AC + DC TRUE RMS)
Range
500mV, 5V, 50V, 500V, 1000V 5 ranges
Accuracy
500mV ~ 50V 3 ranges :
20Hz ~ 45Hz : (1% rdg + 15 digits)
45Hz ~ 2kHz (0.5% rdg + 15 digits)
2k~10kHz (1% rdg + 15 digits)
10kHz ~ 20kHz (2% rdg + 30 digits)
20kHz ~ 50kHz (5% rdg + 30digits)
500V,1000V range :
45Hz ~ 1kHz (0.5% rdg + 15 digits)
Input Impedance
10M
DC CURRENT
Range
500 A, 5mA, 50mA, 500mA, 2A, 20A 6 ranges
Accuracy
500 A~500mA 4ranges: (0.02% rdg+2 digits);2A~20A 2ranges: (0.3% rdg+2digits)
AC CURRENT TRUE RMS (AC OR AC + DC TRUE RMS)
Range
Accuracy
RESISTANCE
RESISTANCE
500 ,5k ,50k ,500k ,5M ,20M 6 ranges
500
(0.1% rdg + 4 digits); 5k ~ 500k 3 ranges
(0.1% rdg + 2 digits)
5M
(0.2% rdg + 2 digits); 20M
(0.3% rdg + 2 digits)
Range
Accuracy
Range
Accuracy
The one range can check the forward voltage of diode. Maximum forward voltage 1.5V
open voltage 2.8V
The one range can check the forward voltage of diode. Maximum forward voltage 1.5V
open voltage 3.1V
BASIC T & M INSTRUMENTS
For: GDM-8245/8246
GDM-8255A/8251A
CAPACITANCE
CAPACITANCE
Range
Accuracy
FREQUENCY
Input Level
(Sine Wave)
5nF, 50nF, 500nF, 5 F, 50 F 5 ranges
(2% rdg + 4 digits)
mV range : 10Hz ~ 50kHz : >120mV ; 50k ~ 150kHz : >200mV
5V ~ 50V range : 20Hz ~ 200kHz >1.2V ; 500V range : 20Hz ~ 1kHz >12V
Accuracy ( 0.05% rdg + 1 digit )
GTL-117 Test Lead
For: GDM-8245/8246
GDM-8255A/8251A
Range
Accuracy
FREQUENCY
Input Level
(Sine Wave)
FUNCTIONS
FUNCTIONS
5nF, 50nF, 500nF, 5 F, 50 F 5 ranges
(2% rdg + 4 digits)
mV range : 10Hz ~ 50kHz : >120mV ; 50k ~ 150kHz : >200mV
5V ~ 50V range : 10Hz ~ 200kHz >1.2V ; 500V range : 20Hz ~ 1kHz >12V
Auto Manual/Range, Max, Min, dBm, REL, Hold
Auto Manual/Range, Max, Min, dBm, REL, Hold, Auto Hold Compare and Set RECALL
CONTINUITY BEEPER
CONTINUITY BEEPER
Built in buzzer sounds when conductance is less than 5
Rear Panel
500 ,5k ,50k ,500k ,5M ,20M 6 ranges
500
(0.1% rdg + 4 digits); 5k ~ 500k 3 ranges
(0.1% rdg + 2 digits)
5M
(0.2% rdg + 2 digits); 20M
(0.3% rdg + 2 digits)
DIODE TEST
DIODE TEST
GTL-117 Test Lead
500 A, 5mA, 50mA, 500mA, 2A, 20A 6 ranges
500 A ~ 20A 6 ranges
20Hz ~ 45Hz : (1% rdg + 15 digits) ; 45Hz ~ 2kHz : (0.5%rdg + 15 digits)
500 A ~ 500mA 4 ranges
2kHz ~ 10kHz : (1% rdg + 15 digits) ; 10kHz ~ 20kHz : (2%1% rdg + 15 digits)
DISPLAY
Dual Display 0.4" and 0.5", 7 segment LED display
INTERFACE
Standard : RS-232C , Optional : GPIB
POWER SOURCE
AC 100V/120V/220V/230V 10%, 50/60Hz
DIMENSIONS & WEIGHT
251(W) x 91(H) x 291(D) mm, Approx. 2.6kg
Rear Panel
Built in buzzer sounds when conductance is less than 5
DISPLAY
Dual Display 0.4" and 0.5", 7 segment LED display
POWER SOURCE
AC 100V/120V/230V 10%, 50/60Hz
DIMENSIONS & WEIGHT
251(W) x 91(H) x 291(D) mm, Approx. 2.6kg
ORDERING INFORMATION
GDM-8245 50,000 Counts Dual Display Digital Multimeter
ORDERING INFORMATION
GDM-8246 50,000 Counts Dual Display, Programmable DMM, with RS-232C Interface
ACCESSORIES :
User manual x 1, Programming manual x 1, Power cord x 1, Test lead GTL-117 x 1
BASIC T & M INSTRUMENTS
FEATURES
The GDM-8245 is an economical bench-top DMM equipped with a rich set of features. The GDM-8245
has similar functions to the GDM-8246, but with slightly reduced DCV accuracy and no communication
interfaces. The large 7 segment LED dual display features up to 50,000 counts and the ability to show
two measurements at extensive list of measurement items - DC Voltage/Current, AC Voltage/Current
with true RMS, Resistance, Capacitance, Frequency, Continuity (with beeper), Diode Test, and dBm.
Additional measurement functions, such as Max/Min hold, Relative value, and Compare ease setup
and diagnosis burdens. With great range, good accuracy and able to accept up to 20A of current the
GDM-8245 is the perfect general purpose DMM.
ACCESSORIES :
User manual x 1, Power cord x 1, Test lead GTL-117 x 1
OPTION
Opt.01
GPIB Interface (Factory Installed)
OPTIONAL ACCESSORIES
GTL-232
RS232C Cable, 9-pin Female to 9-pin, null Modem for Computer
FREE DOWNLOAD
PC Software
E5
Demo software for remote control
Made to Measure.
Good Will Instrument Co., Ltd.
E6